Question

*.
A particle falls from a height 'h' upon a fixed
horizontal plane and rebounds. If 'e' is the
coefficient of restitution the total distance travelled
before rebounding has stopped is :-​

Answer 1

Answer:

Explanation:

the ball bounds with velocity ev

h1=e2v22g

h2=[e4v2]2g

Total distance :

h+2h1+2h2+2h3+..........

v22g+2e2v22g+2(e4v22g)+2(e6v2)2g+.............

v22g+e2v22g[1+e2+e4+......]

v22g+e2v2g[11−e2]

[1−e2+2e2]v22g(1−e2)=[1+e21−e2]v22g

=(1+e21−e2)h